policy-handler seed code

Change-Id: I35cd80b6e082f4b84740bab752774e8abc40ca35
Issue-Id: DCAEGEN2-46
Signed-off-by: Alex Shatov <alexs@att.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/policyhandler/deploy_handler.py b/policyhandler/deploy_handler.py
new file mode 100644
index 0000000..02807f8
--- /dev/null
+++ b/policyhandler/deploy_handler.py
@@ -0,0 +1,88 @@
+""" send notification to deploy-handler"""
+
+# org.onap.dcae
+# ================================================================================
+# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============LICENSE_END=========================================================
+#
+# ECOMP is a trademark and service mark of AT&T Intellectual Property.
+
+import logging
+import json
+import requests
+
+from .config import Config
+from .discovery import DiscoveryClient
+from .onap.audit import REQUEST_X_ECOMP_REQUESTID, Audit, AuditHttpCode
+
+class DeployHandler(object):
+    """ deploy-handler """
+    _logger = logging.getLogger("policy_handler.deploy_handler")
+    _policy_update = '/policy_update'
+    _lazy_inited = False
+    _config = None
+    _url = None
+    _path = None
+    _target_entity = None
+
+    @staticmethod
+    def _lazy_init():
+        """ set static properties """
+        if DeployHandler._lazy_inited:
+            return
+        DeployHandler._lazy_inited = True
+        DeployHandler._target_entity = Config.config["deploy_handler"]
+        DeployHandler._url = DiscoveryClient.get_service_url(DeployHandler._target_entity)
+        DeployHandler._path = DeployHandler._url + DeployHandler._policy_update
+        DeployHandler._logger.info("DeployHandler url(%s)", DeployHandler._url)
+
+    @staticmethod
+    def policy_update(audit, latest_policies):
+        """ post policy_updated message to deploy-handler """
+        DeployHandler._lazy_init()
+        msg = {"latest_policies":latest_policies}
+        sub_aud = Audit(aud_parent=audit, targetEntity=DeployHandler._target_entity, \
+            targetServiceName=DeployHandler._path)
+        headers = {REQUEST_X_ECOMP_REQUESTID : sub_aud.request_id}
+
+        msg_str = json.dumps(msg)
+        headers_str = json.dumps(headers)
+
+        log_line = "post to deployment-handler {0} msg={1} headers={2}".format(\
+            DeployHandler._path, msg_str, headers_str)
+        sub_aud.metrics_start(log_line)
+        DeployHandler._logger.info(log_line)
+
+        res = None
+        try:
+            res = requests.post(DeployHandler._path, json=msg, headers=headers)
+        except requests.exceptions.RequestException as ex:
+            error_msg = "failed to post to deployment-handler {0} {1} msg={2} headers={3}" \
+                .format(DeployHandler._path, str(ex), msg_str, headers_str)
+            DeployHandler._logger.exception(error_msg)
+            sub_aud.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
+            audit.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
+            sub_aud.metrics(error_msg)
+            return
+
+        sub_aud.set_http_status_code(res.status_code)
+        audit.set_http_status_code(res.status_code)
+
+        sub_aud.metrics( \
+            "response from deployment-handler to post {0}: {1} msg={2} text={3} headers={4}" \
+            .format(DeployHandler._path, res.status_code, msg_str, res.text, res.request.headers))
+
+        if res.status_code == requests.codes.ok:
+            return res.json()